#21879D#21879D

#21879D is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 57.7% C 0.094 H 216.2°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#21879D
RGB	rgb(33, 135, 157)
HSL	hsl(191, 65%, 37%)
HSV	hsv(191, 79%, 62%)
CMYK	cmyk(79%, 14%, 0%, 38.4%)
CIE-LAB	lab(51.93, -20.38, -19.83)
CIE-LCH	lch(51.93, 28.43, 224.21°)
OKLab	oklab(57.75% -0.0758 -0.0554)
OKLCH	oklch(57.75% 0.094 216.2)
XYZ	xyz(15.3744, 20.0837, 34.9580)
Luminance	0.2009 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21879D #9D3721

analogous

#219D75 #21879D #21499D

triadic

#21879D #9D2187 #879D21

tetradic

#21879D #75219D #9D3721 #499D21

square

#21879D #75219D #9D3721 #499D21

split-complementary

#21879D #9D2149 #9D7521

monochromatic

#0C3038 #165C6A #21879D #2CB2D0 #5CC6DD

Accessibility & contrast

On white

4.19

#21879D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#21879D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #21879D

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21879D	#FFFFFF	#000000	##000000
##21879D	1.00	4.19	5.02	5.02
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#78839E

Deuteranopia (green-blind)

#68779D

Tritanopia (blue-blind)

#008F8E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #21879d;
/* rgb */ color: rgb(33, 135, 157);
/* oklch */ color: oklch(57.7% 0.094 216.2);

Tailwind

colors: {
  custom: {
    50: '#72aaba',
    500: '#21879d',
    950: '#000000',
  },
}

SCSS

$custom: #21879d;
$custom-light: #72aaba;
$custom-dark: #000000;

JSON

{
  "hex": "#21879d",
  "rgb": {
    "r": 33,
    "g": 135,
    "b": 157
  },
  "hsl": {
    "h": 190.645,
    "s": 65.263,
    "l": 37.255
  },
  "oklch": {
    "l": 0.57748,
    "c": 0.09385,
    "h": 216.2
  },
  "luminance": 0.20086
}

Semantic roles & 50–950 ramp

primary

#21879D

secondary

#C16B59

accent

#5D40E8

background

#F7FAFB

surface

#EDF4F6

border

#C8CED0

text

#091011

muted

#7B7F80

Preview Lab

Preview with #21879D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →